Regulated online talk provider bringing in a Parisian (5)
I believe the answer is:
tuned
'regulated online talk' is the definition.
The definition and answer can be both related to change as well as being past participle verbs.
Maybe they are linked in a way I don't understand?
'provider bringing in a parisian' is the wordplay.
'provider' becomes 'td' (I can't explain this - if you can you should give a lot more credence to this answer).
'bringing in' is an insertion indicator.
'a parisian' becomes 'une' ('a' in French).
'td' enclosing 'une' is 'TUNED'.
Can you help me to learn more?
(Other definitions for tuned that I've seen before include "(Of note) adjusted" , "Adjusted (musical) pitch" , "on song" , "Adjusted a radio or engine" , "(Of a piano) properly adjusted" .)